child process spawn python node js

1const path = require('path')
2const {spawn} = require('child_process')
3/**
4   * Run python myscript, pass in `-u` to not buffer console output
5   * @return {ChildProcess}
6*/
7function runScript(){
8   return spawn('python', [
9      "-u",
10      path.join(__dirname, 'myscript.py'),
11     "--foo", "some value for foo",
12   ]);
13}
14const subprocess = runScript()
15// print output of script
16subprocess.stdout.on('data', (data) => {
17   console.log(`data:${data}`);
18});
19subprocess.stderr.on('data', (data) => {
20   console.log(`error:${data}`);
21});
22subprocess.stderr.on('close', () => {
23   console.log("Closed");
24});

1#Import library
2import sys, getopt, time
3def main(argv):
4   argument = ''
5   usage = 'usage: myscript.py -f <sometext>'
6   # parse incoming arguments
7   try:
8      opts, args = getopt.getopt(argv,"hf:",["foo="])
9   except getopt.GetoptError:
10      print(usage)
11      sys.exit(2)
12   for opt, arg in opts:
13      if opt == '-h':
14         print(usage)
15         sys.exit()
16      elif opt in ("-f", "--foo"):
17         argument = arg
18   # print output
19   print("Start : %s" % time.ctime())
20   time.sleep( 2 )
21   print('Foo is')
22   time.sleep( 2 )
23   print(argument)
24   print("End : %s" % time.ctime())
25if __name__ == "__main__":
26main(sys.argv[1:])